/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.servicecomb.codec.protobuf.jackson;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.dataformat.protobuf.ProtobufGenerator;
import com.fasterxml.jackson.dataformat.protobuf.schema.ProtobufField;

public class ResultSerializer extends JsonSerializer<Object> {
  @Override
  public void serialize(Object value, JsonGenerator gen,
      SerializerProvider serializers) throws IOException, JsonProcessingException {
    gen.writeStartObject();

    ProtobufGenerator protobufGenerator = (ProtobufGenerator) gen;
    ProtobufField field = protobufGenerator.getSchema().getRootType().firstField();
    gen.writeObjectField(field.name, value);

    gen.writeEndObject();
  }
}
